This is more of a random question. Does a virtual machine running on a computer have a different ID number than the computer it’s running on?
What ID number would that be?
Cas 
For instance , on a piece of software called BYOND you are able to request a computer ID that returns an Integer of something like 384756237. This stays the same for the computer unlike the IP.
They are probably calculating this ID from other values.
What he said. You need to query various things and then create a hash of the values you find.
Cas